I highly recommend staying at Mam's condo here in Samyan. This is by far the best place I've stayed in Bangkok. The condo itself is very clean and high up. It has everything you need as a single traveller. The view is awesome! You can see Hua Lam Pong Temple from your bed! And you the night view is spectacular from the balcony. I value the view a lot because it can make you feel so much better when traveling.
And Mam kindly recommended me a lot of local street food. These places can be hard to find if you are not a local. Thanks Mam for doing that!
There is a 7-11 right on the first floor of the building which can satisfy most of your need.
公寓整体非常非常干净。地理位置也很好。最大的加分项是景色！景色太美了！俯瞰整个曼谷！瞬间让人心情很好！ 屋内采光非常好一直都很亮。很适合一个人生活。房东推荐了很多周边的小吃，感觉是平常自己很难找到的。房东人很好回消息也很及时。